82C37 Datasheet, PDF (16/23 Pages) Harris Corporation – CMOS High Performance Programmable DMA Controller

82C37A
AC Electrical Specifications
V_CC = +5.0V ±10%, GND = 0V, T_A = 0^oC to +70^oC (C82C37A),
T_A = -40^oC to +85^oC (I82C37A),
T_A = -55^oC to +125^oC (M82C37A) (Continued)
82C37A-5
82C37A
SYMBOL
PARAMETER
MIN
MAX
MIN
MAX
(21)TEPW
EOP Pulse Width
220
-
135
-
82C37A-12
MIN
MAX
50
-
(22)TFAAB
ADR Valid Delay from CLK HIGH
-
110
-
60
-
50
(23)TFAC
READ or WRITE Active from
CLK HIGH
-
150
-
90
-
50
(24)TFADB DB Valid Delay from CLK HIGH
-
110
-
60
-
45
(25)THS
HLDA Valid to CLK HIGH Setup Time
75
-
45
-
10
-
(26)TIDH
Input Data from MEMR HIGH
Hold Time
0
-
0
-
0
-
(27)TIDS
Input Data to MEMR HIGH
Setup Time
155
-
90
-
45
-
(28)TODH
Output Data from MEMW HIGH
Hold Time
15
-
15
-
TCY-50
-
(29)TODV
Output Data Valid to MEMW HIGH
TCY-35
-
TCY-35
-
TCY-10
-
(30)TQS
DREQ to CLK LOW (SI, S4)
Setup Time
0
-
0
-
0
-
(31)TRH
CLK to READY LOW Hold Time
20
-
20
-
10
-
(32)TRS
READY to CLK LOW Setup Time
60
-
35
-
15
-
(33)TCLSH
ADSTB HIGH from CLK LOW
Delay Time
-
80
-
70
-
70
(34)TCLSL
ADSTB LOW from CLK LOW
Delay Time
-
120
-
120
-
60
(35)TWRRD READ HIGH Delay from WRITE HIGH
0
-
0
-
5
-
(36)TRLRH READ Pulse Width, Normal Timing
2TCY-60
-
2TCY-60
-
2TCY-55
-
(37)TSHSL ADSTB Pulse Width
TCY-80
-
TCY-50
-
TCY-35
-
(38)TWLWHA Extended WRITE Pulse Width
2TCY-100
-
2TCY-85
-
2TCY-80
-
(39)TWLWH WRITE Pulse Width
TCY-100
-
TCY-85
-
TCY-80
-
(40)TRLRHC READ Pulse Width, Compressed
TCY-60
-
TCY-60
-
TCY-55
-
(56)TAVRL ADR Valid to READ LOW
17
-
17
-
17
-
(57)TAVWL ADR Valid to WRITE LOW
7
-
7
-
7
-
(58)TRHAL READ HIGH to AEN LOW
15
-
15
-
15
-
(59)TRHSH READ HIGH to ADSTB HIGH
13
-
13
-
13
-
(60)TWHSH WRITE HIGH to ADSTB HIGH
15
-
15
-
15
-
(61)TDVRL DACK Valid to READ LOW
25
-
25
-
25
-
UNITS
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
ns
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